TREX CDE abd stability

[GunSlngr]

Hi, have been trying to keep the TREX hovering in a stable manner but failed to keep it still for more than 5 secs.

1 managed to trim all the controls and I think they should be quite ok.

2 have been hovering at about 1meter off the ground to avoid ground effect. But still couldn't keep the fella stable. I think its the pilot. Hand like legs. when the fella starts to driff, I start to kanjiong. . What could be wrong?

3 what is the minimum voltage of a 3s1p should be after flying. It shouldn't go below what voltage? approx 9v?

4 upgraded to the new cf frame(couldn't resist). some parts feels filmsy. Especially the bolts and nuts which goes into the cf. Quite easily stripped. I changed all the screws, is afraid that I'll strip the heads, which is quite easily done.

thx and regards

[Super-Hornet]

Hi
Let me see whether I can answer some of your question here:
1 managed to trim all the controls and I think they should be quite ok.

2 have been hovering at about 1meter off the ground to avoid ground effect. But still couldn't keep the fella stable. I think its the pilot. Hand like legs. when the fella starts to driff, I start to kanjiong. . What could be wrong?
Make really sure your heli is properly trim. Swash plate is as level as possible.
If heli vibrate, chances is that u have either bended shaft or unbalance blades/paddles/flybar lenght or unequal blade pitch. When u have such problem, your heli tend to be unstable. For beginner, try to reduce your cyclic throw by reducing the endpoint or change the dualrate/expo. Once you have balance heli, your heli will not drift so much.

3 what is the minimum voltage of a 3s1p should be after flying. It shouldn't go below what voltage? approx 9v?
Each Li-Poly minimum recommended cut off is 3V per cell. So, 3S is 9V. U still can go lower than 9V but u will shorten the bettery life. If goes below 2.1V per cell, Li-Poly will go to open circuit stage.

4 upgraded to the new cf frame(couldn't resist). some parts feels filmsy. Especially the bolts and nuts which goes into the cf. Quite easily stripped. I changed all the screws, is afraid that I'll strip the heads, which is quite easily done.
This one I haven't try due to not rich enuff to spend it. Try not to overscrew it. BTW... For beginner, try not to use those blink body parts... unless u have deep pocket. Beginner tend to crash more often. BTW.. One thing I have notice is that, the more heavy the heli is, the more stable it hover/fly. (Not sure abt 3D yet)


Super-Hornet

[GunSlngr]

stability

Hi, Super Hornet. thx for all the constant help.
Just so I got u right.

uneven blade pitch= adjust ball links right
uneven weight= sticky tapes on lighter side
bent whatever= change, no choice, no other way

9v is the safe zone, ok. so don't fly until drop in rpm.

heavy=stable. got it. however it should have shorterflight time, due to weight.
I also read your post in runryder.

thx

[Super-Hornet]

Yup Yup.

Normally when battery going to reach 9V, your heli would able to take off anyway.

Super-Hornet

[GunSlngr]

temperature of motor, esc and batteries

Hi, roughly how hot will the motor, esc and batts be after say about 8 mins of hovering?

mine feels like this:

esc= quite hot, can only touch for about 1-2 secs b4 it gets too hot to the feel

batts: feels like quite warm. for comparison its like the temp of a nimh batt being charged at 1.5amps for a 2300mah batt.

motor: feels ok, just warm

is the mega 16/15/3 motor good for the following usage?

1 better headspeed with lower amp draw?
2 better suited for the 3s1p batt?
3 reduce temps of the a/m parts?
4 longer flight time?

the rest of my TREX electronics is the one that came with ie
align 25A esc
align bl 420 motor.

what do I stand to gain if any, if I were to keep the rest stock?

thx and best regards

[ChRiS]

can i noe where u place ur ESC? i saw some where which i think is a good idea.. putting the Rx on the right side below the main gear and the ESC on the left side.. but on the out side.. more ventilation..

do u think it it is a good idea>???